Voyager Mission Operations Status
Report # 2009-03-27, Week Ending March 27, 2009
Command Transmission &
Verification Operations
There were no command operations in support of Voyager 1 during the period.
There were no command operations in support of Voyager 2 during the period due to the extended downtime of DSS-43.
Sequence Generation Operations
Complete
sequence development of CCSL A071.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 68.4 hours of DSN scheduled support for Voyager 1 of which 28.6 hours were large aperture coverage. There were no real-time or schedule support changes made or significant outages during the period
Science instrument performance was nominal for all activities during this period. One frame of GS-4 data was recorded this week. A second frame of GS-4 data was recorded on March 21. 93.5% of 23 frames of GS-4 data were recovered in a playback on March 25. The EDR backlog is 2 days.
Voyager
2 Data Processing and Operations:
There were 42.9 hours of DSN scheduled support for Voyager 2 of which 0 hours were large aperture coverage. There were no real-time or schedule support changes made or significant outages during the period.
Science instrument performance was nominal for all activities
during this period. The EDR backlog is 2
days.
Flight System Performance
Voyager
1 performance was nominal during this report period. Activities included DTR playbacks on 3/25 and
3/26 [DOY 084 and 086]followed by X-band switch to low power on 3/26.
Voyager
2 performance was nominal during this report period.
PROPELLANT/POWER CONSUMABLES
STATUS AS OF THIS REPORT
|
Spacecraft |
Consumption One Week (Gm) |
Propellant Remaining (Kg) |
Output (Watts) |
Margin (Watts) |
|
1 |
4.80 |
26.74 |
278.4 |
31 |
|
2 |
47.34* |
28.44 |
279.8 |
39 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 3/27/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,370,000,000 |
13,258,000,000 |
|
Distance
from the Sun (Mi) |
10,172,000,000 |
8,238,000,000 |
|
Distance
from the Earth (Km) |
16,325,000,000 |
13,286,000,000 |
|
Distance
from the Earth (Mi) |
10,144,000,000 |
8,256,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,777,000,000 |
19,811,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,910,000,000 |
12,310,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.088 |
15.514 |
|
Velocity
Relative to Sun (Mi/hr) |
38,225 |
34,702 |
|
Velocity
Relative to Earth (Km/sec) |
19.428 |
23.276 |
|
Velocity
Relative to Earth (Mi/hr) |
43,458 |
52,067 |
|
Round
Trip Light Time (hh:mm:ss) |
30:14:08 |
24:37:02 |